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what is catabolic
Catabolism is the breaking down of things - a series of degradative chemical reactions that break down complex molecules into smaller units, and in most cases releasing energy in the process.  (Catabolism breaks things down and gives out energy. Using bigger things to make smaller things and releasing energy in the process.) Catabolism provides the energy our bodies need for physical activity, from a cellular level right up to whole body movements.

The catabolic chemical reactions in the living cell break down polymers into their constituent monomers.
 For example:    Polysaccharides are broken down into mono saccharides.
    Complex carbohydrates, such as starch, glycogen, and cellulose are polysaccharides.
    (Simple carbohydrates, such as glucose, ribose, and fructose are monosaccharides).



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